Used as a chiral protecting group reagent in asymmetric synthesis, particularly in the preparation and stabilization of enantiomerically pure amines. Its structure allows for selective protection of amine functionalities while maintaining stereochemical integrity, making it valuable in pharmaceutical synthesis where stereochemistry impacts biological activity. Commonly employed in multi-step organic transformations involving peptide mimetics and bioactive molecules. The thiocarbonyl group enhances stability and influences reactivity during deprotection steps, enabling controlled release of the amine under mild conditions.